Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac0ec4a8d8d8f157…

MALICIOUS

PDF

77.9 KB Created: 2021-02-15 19:09:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 41d2c515fc8e70b31c251e8a37867e3c SHA-1: dd3510489273b7fb99d9149ef0698c5d26d97298 SHA-256: ac0ec4a8d8d8f15786e9ae5a90982408bbf653a116aceb561ef4021f8abf4903
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://bologen.ru/123?utm_term=frigidaire+fad704dwd+dehumidifier+reviews PDF link annotation
    • http://fusavexupisedi.iblogger.org/16134835915.pdfIn PDF document text
    • http://50offshop.info/jijibetozoreifqk5.pdfIn PDF document text
    • https://kitedagipan.weebly.com/uploads/1/3/4/8/134892955/benil_beduzujavor.pdfIn PDF document text
    • https://jelezasi.weebly.com/uploads/1/3/5/3/135347821/228c7b3.pdfIn PDF document text
    • http://santaparker.store/zozuvewapoxedcyowj.pdfIn PDF document text
    • http://testrun.ru/espresso_shot_nutrition_informationkylqh.pdfIn PDF document text
    • https://vejikawotepux.weebly.com/uploads/1/3/4/8/134887167/zunilu.pdfIn PDF document text
    • http://afterdealer.pro/electron_configuration_listbb9sy.pdfIn PDF document text
    • http://meinekarten.best/non_allotropic_forms_of_carbonh9ij3.pdfIn PDF document text
    • https://manoxumumaxu.weebly.com/uploads/1/3/4/4/134472756/befinovurabew_vodalon.pdfIn PDF document text
    • https://losulojer.weebly.com/uploads/1/3/0/7/130739206/6267160.pdfIn PDF document text
    • https://wetuwene.weebly.com/uploads/1/3/5/4/135400298/kerifi.pdfIn PDF document text
    • http://infonewsuk.site/aquaman_video_songsbpkg2.pdfIn PDF document text
    • http://hookup157.fun/junubuzivasumaxofavifa86glf.pdfIn PDF document text
    • https://fazotevepokok.weebly.com/uploads/1/3/4/8/134865813/taduga_nijobevov_kanabuxo.pdfIn PDF document text
    • https://regakoxunurur.weebly.com/uploads/1/3/4/3/134380337/5157783.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nawuxek.rf.gd/graphing_quadratic_functions_in_vertex_form_answers.pdfIn PDF document text
    • http://kutubuge.rf.gd/brave_soul_clothing_size_guide.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f2b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2B1 5704 bytes
SHA-256: f13ea4204fae37f17ea01036aa26b7c3a55d0d025ae8ffe55b4666573671e3e2
font_01_sfnt_off0001061a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1061A 10644 bytes
SHA-256: aed8c108aeca0fffe7e0fd32f7a601d7fc869631476922a18105897f84cf45e3